| (i) Magnesium competes with iron and manganese for uptake and with iron for binding with enzymes. |
| (ii) Magnesium inhibit calcium translocation in shoot apex. |
| (iii) Excess of manganese may induce deficiencies of iron, magnesium and calcium. |
| (iv) Symptoms of manganese toxicity may actually be the deficiency symptoms of iron, magnesium and calcium. |
A) (i), (ii) and (iii)
B) (i) and (ii)
C) (iii) and (iv)
D) (ii), (iii) and (iv)
Correct Answer: C
Solution :
[c] Manganese competes with iron and magnesium for uptake, and with magnesium for binding with enzymes. Manganese also inhibits calcium translocation in shoot apex.
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